The Bureau of Alcohol, Tobacco, Firearms, and Explosives.
Also read: My uncle has a cracked sense of humor, and now you know where I get it from.

We were helping him clean out his house after his wife passed, and we found the booze and fireworks stashed somewhere. I made the mistake of mentioning that a funny picture could be made if a pack of cigs and a firearm- the cigs were already on the table, but uncle disappeared for a couple minutes and returned with a loaded firearm, which I gently set down on the table, took the picture, and then handed it back to him.